/***************************************************************************//**
 * @file CGI/DataTypeSkyDomeSun.cpp
 * @author  Marek M. Cel <marekcel@mscsim.org>
 *
 * @section LICENSE
 *
 * Copyright (C) 2014 Marek M. Cel
 *
 * This file is part of MScSim. You can redistribute and modify it under
 * the terms of GNU General Public License as published by the Free Software
 * Foundation; either version 3 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.
 * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * Further information about the GNU General Public License can also be found
 * on the world wide web at http://www.gnu.org.
 ******************************************************************************/
#ifndef DATA_TYPE_SKY_DOME_SUN_CPP
#define DATA_TYPE_SKY_DOME_SUN_CPP
#endif

////////////////////////////////////////////////////////////////////////////////

#include <iostream>

#include <CGI/VisitorFindNode.h>
#include <CGI/DataTypeSkyDomeSun.h>

////////////////////////////////////////////////////////////////////////////////

using namespace std;

////////////////////////////////////////////////////////////////////////////////

DataTypeSkyDomeSun::DataTypeSkyDomeSun( osg::Node *node ) :
    m_elevation ( 0.0 )
{
    VisitorFindNode findPAT( "SkyDomeSunPAT" );

    node->accept( findPAT );

    m_skyDomeSunPAT = dynamic_cast<osg::PositionAttitudeTransform *>( findPAT.getFirstNode().get() );
}

////////////////////////////////////////////////////////////////////////////////

void DataTypeSkyDomeSun::update()
{
    updatePosition();
}

////////////////////////////////////////////////////////////////////////////////

void DataTypeSkyDomeSun::updatePosition()
{
    if ( m_skyDomeSunPAT.valid() )
    {
        osg::Quat elevation;

        elevation.makeRotate( 0.0         , osg::Vec3d( 1.0, 0.0, 0.0 ),
                             -m_elevation , osg::Vec3d( 0.0, 1.0, 0.0 ),
                              M_PI / 2.0  , osg::Vec3d( 0.0, 0.0, 1.0 ) );

        m_skyDomeSunPAT->setAttitude( elevation );
    }
    else
    {
        cerr << "ERROR! Wrong node pointer." << endl;
    }
}
